Rupal Metals, located in Delhi, India, stands out as a reliable manufacturer and supplier of Alloy Steel F91 Bars and Rods. We specialize in providing high-performance solutions tailored for critical sectors like power generation, oil & gas, and petrochemicals. Our Alloy Steel F91, a modified 9Cr-1Mo steel, is known for its remarkable strength, thermal resistance, and creep properties even at high temperatures. At Rupal Metals, we employ cutting-edge manufacturing techniques and rigorous quality assurance to ensure our F91 bars and rods meet the highest international standards. With a commitment to precision, durability, and timely delivery, we offer customized alloy steel products designed to thrive in extreme operational conditions.
Alloy Steel F91 is a ferritic-martensitic steel that contains around 8–9.5% Chromium, 0.85–1.05% Molybdenum, along with Vanadium, Niobium, Nitrogen, and Carbon. This alloy is engineered for high-temperature applications, boasting excellent creep strength, oxidation resistance, and thermal stability. Typically, F91 bars and rods demonstrate a tensile strength ranging from 585 to 760 MPa, yield strength exceeding 415 MPa, and favorable elongation properties. To enhance its mechanical performance, the alloy undergoes heat treatment through normalizing and tempering, making it perfect for pressure-retaining components in power plants and refinery systems.
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type |
Alloy Steel ASTM A182 F91 Round Bars |
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Type |
rod, square bar, Round bar, hexagon bar, flat bar, channel bar, angle bar, threaded bar |
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Standards |
Alloy Steel ASTM A182 F91 , A479, A314, GB4226-84, GB/T1220-2007, JISG4311-91, JIS G4318-98, EN 10095-99, GB4226-84, EN10088-3-2005, JIS G3033-2005, etc |
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Surface |
bright round bar, pickled round bar, black round bar |
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Package Details |
Standard seaworthy package(wooden boxes package,pvc package, or other package) |
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Technique |
Forged/Hot Rolled/Cold Drawn/Peeled |
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Range |
Range – 3.17mm to 350mm dia |
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Diameter |
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Length |
1m-9m or according to the customer’s requirement |
| Grade | C | Mn | Si | Mo | P | Cr |
| ASTM A182 F91 | 0.08 – 0.15 | 0.30 – 0.60 | 0.20 – 0.50 | 0.85 – 1.05 | 0.020 | 8.0 – 9.5 |
| Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min |
| 570 | 23 | 295 |
| STANDARD | WERKSTOFF NR. | UNS |
| ASTM A182 F91 | 1.4903 | – |
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SHAPE |
POUNDS PER FOOT |
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Round |
D2 x 2.67 |
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Hexagon |
D2 x 2.945 |
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Square |
D2 x 3.4 |
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Flat |
Thickness (in.) x Width (in.) x 3.4 |
Alloy Steel F91 Bars and Rods are primarily used in high-temperature and high-pressure applications such as power plants, pressure vessels, and heat exchangers due to their strength and resistance to oxidation.
Alloy Steel F91 offers excellent tensile strength, high-temperature resistance, and good oxidation and corrosion resistance, making it ideal for demanding industrial applications.
Alloy Steel F91 Bars and Rods find extensive use in industries that require exceptional thermal strength and reliable long-term performance under high temperatures and pressures. They are commonly utilized in boiler tubes, heat exchangers, superheaters, headers, and steam piping in ultra-supercritical and advanced power plants. Additionally, these bars and rods are essential in refineries, petrochemical facilities, and high-pressure vessels, where outstanding creep resistance and oxidation protection are crucial.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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